[SPARC]: Add of_set_property() interface.
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
parent
dda9beb414
commit
fb7cd9d9ac
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@ -27,6 +27,11 @@
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static struct device_node *allnodes;
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/* use when traversing tree through the allnext, child, sibling,
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* or parent members of struct device_node.
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*/
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static DEFINE_RWLOCK(devtree_lock);
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int of_device_is_compatible(struct device_node *device, const char *compat)
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{
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const char* cp;
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@ -185,6 +190,54 @@ int of_getintprop_default(struct device_node *np, const char *name, int def)
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}
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EXPORT_SYMBOL(of_getintprop_default);
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int of_set_property(struct device_node *dp, const char *name, void *val, int len)
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{
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struct property **prevp;
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void *new_val;
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int err;
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new_val = kmalloc(len, GFP_KERNEL);
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if (!new_val)
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return -ENOMEM;
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memcpy(new_val, val, len);
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err = -ENODEV;
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write_lock(&devtree_lock);
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prevp = &dp->properties;
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while (*prevp) {
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struct property *prop = *prevp;
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if (!strcmp(prop->name, name)) {
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void *old_val = prop->value;
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int ret;
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ret = prom_setprop(dp->node, name, val, len);
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err = -EINVAL;
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if (ret >= 0) {
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prop->value = new_val;
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prop->length = len;
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if (OF_IS_DYNAMIC(prop))
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kfree(old_val);
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OF_MARK_DYNAMIC(prop);
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err = 0;
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}
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break;
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}
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prevp = &(*prevp)->next;
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}
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write_unlock(&devtree_lock);
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/* XXX Upate procfs if necessary... */
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return err;
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}
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EXPORT_SYMBOL(of_set_property);
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static unsigned int prom_early_allocated;
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static void * __init prom_early_alloc(unsigned long size)
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@ -27,6 +27,11 @@
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static struct device_node *allnodes;
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/* use when traversing tree through the allnext, child, sibling,
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* or parent members of struct device_node.
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*/
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static DEFINE_RWLOCK(devtree_lock);
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int of_device_is_compatible(struct device_node *device, const char *compat)
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{
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const char* cp;
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@ -185,6 +190,54 @@ int of_getintprop_default(struct device_node *np, const char *name, int def)
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}
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EXPORT_SYMBOL(of_getintprop_default);
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int of_set_property(struct device_node *dp, const char *name, void *val, int len)
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{
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struct property **prevp;
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void *new_val;
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int err;
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new_val = kmalloc(len, GFP_KERNEL);
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if (!new_val)
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return -ENOMEM;
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memcpy(new_val, val, len);
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err = -ENODEV;
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write_lock(&devtree_lock);
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prevp = &dp->properties;
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while (*prevp) {
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struct property *prop = *prevp;
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if (!strcmp(prop->name, name)) {
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void *old_val = prop->value;
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int ret;
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ret = prom_setprop(dp->node, name, val, len);
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err = -EINVAL;
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if (ret >= 0) {
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prop->value = new_val;
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prop->length = len;
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if (OF_IS_DYNAMIC(prop))
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kfree(old_val);
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OF_MARK_DYNAMIC(prop);
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err = 0;
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}
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break;
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}
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prevp = &(*prevp)->next;
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}
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write_unlock(&devtree_lock);
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/* XXX Upate procfs if necessary... */
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return err;
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}
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EXPORT_SYMBOL(of_set_property);
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static unsigned int prom_early_allocated;
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static void * __init prom_early_alloc(unsigned long size)
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@ -35,6 +35,7 @@ struct property {
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int length;
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void *value;
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struct property *next;
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unsigned long _flags;
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};
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struct device_node {
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@ -60,6 +61,12 @@ struct device_node {
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void *data;
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};
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/* flag descriptions */
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#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
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#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
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#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
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static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
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{
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dn->pde = de;
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@ -88,6 +95,7 @@ extern struct property *of_find_property(struct device_node *np,
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extern int of_device_is_compatible(struct device_node *device, const char *);
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extern void *of_get_property(struct device_node *node, const char *name,
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int *lenp);
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extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
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extern int of_getintprop_default(struct device_node *np,
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const char *name,
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int def);
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@ -35,6 +35,7 @@ struct property {
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int length;
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void *value;
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struct property *next;
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unsigned long _flags;
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};
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struct device_node {
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@ -60,6 +61,12 @@ struct device_node {
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void *data;
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};
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/* flag descriptions */
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#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
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#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
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#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
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static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
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{
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dn->pde = de;
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@ -88,6 +95,7 @@ extern struct property *of_find_property(struct device_node *np,
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extern int of_device_is_compatible(struct device_node *device, const char *);
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extern void *of_get_property(struct device_node *node, const char *name,
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int *lenp);
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extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
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extern int of_getintprop_default(struct device_node *np,
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const char *name,
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int def);
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